SU1629922A1 - Current pickup - Google Patents

Abstract

The invention relates to electrical engineering and can be used in the quality of a short-circuit current sensor in aerial networks with a voltage of 6-10 kV. The goal is to increase reliability in operation. The sensor includes the first measuring winding 1 located on the steel pin 2 of the first linear insulator 3, and the second measuring winding 4 located on the pin 5 of the second linear insulator 6. The pins 2 and 5 are mounted next to the common steel yoke 7. Insulator heads 3 and 6 are covered by a common ferromagnetic bracket 9. High-voltage drive 10 is divided into two sections 11 and 12 connected in parallel. The wire 10 serves as a single-turn primary winding of the current sensor and is attached to the double-viscous insulators, which increases reliability in operation. 3il. and s

Description

sixteen

Figz

Claims (1)

Claim A current sensor containing a current transformer, the primary winding of which is a wire of a high-voltage power line, mounted on the neck of the pin insulator, and the secondary winding is located on steel ducts connected to each other in parallel in nodes 13 and 14. The main 1 G current lead is attached to the neck of the insulator 3 Using an insulated knitting conductor 15, and the current lead 12 - to the neck of the insulator 6 using an insulated knitting conductor 16. The current sensor works as follows. ' · Nom pin of fastening of this insulator, characterized in that, with. In order to increase reliability in operation, it contains an additional current transformer similar to the main one, as well as a steel beam and a common ferromagnetic bracket covering the heads of both insulators on top, both pins placed side by side on the beam, and wires of the high-voltage line connected in parallel. FIG. 2 16299 2.2